How to Set Up a Butterfly Pool Trick Shot
How to Set Up a Butterfly Pool Trick Shot.
Since you already wrote the title, here's the post:
1. Place the cue ball centered, one diamond from the side pockets.
2. Place the two center object balls (the 2 and the 5 in this example) so they make combinations aimed at the side pockets.
3. Place the other four balls so they make combinations aimed at the corner pockets (adjusted for throw as shown).
4. Move the cue ball toward the end rail and shoot the shot. If the center balls don't go into the side pockets, adjust the starting position accordingly (closer to or farther from the side pockets).
That's about all there is to it. (Thanks to Dr. Dave's website for its detailed description, linked in his post below).
pj
chgo
P.S. The center balls go into the side pockets because of an interesting principle of carom shots: if a ball is frozen to two balls, shooting it toward one ball causes it to carom along the other ball's 90-degree tangent line (the dotted lines in the example below). The center balls (2 & 5 below) are positioned where lines to the side and bottom corner pockets form a right angle - that's where the combo/carom works.
Altogether, 4 combination shots and 2 double-carom shots are made in this single trick shot that anybody can do.
